Since Oracle Database 10g Release 10.2.0.4 looms, I should think there are a lot of folks thinking about planned upgrades. All told, I should think 10.2.0.4 would be a very desirable upgrade for Oracle Database 9i and earlier 10g deployments. Too bad it takes so long to get applications certified with new releases such as Oracle Database 11g. A jump from 9i to 11g would breath a lot of life into a database, but ignore my opinion in that case since I am not a DBA.
The Maximum Availability Architecture folks have released a new paper. The author is Michael Nowak who I had the pleasure of meeting recently at a Beta event we had for a future Oracle product. Anyway, Michael’s paper can be found here on the MAA site. You might find it to be a useful resource.